A ladder which is 17m long is leaning against a wall. the foot of thr ladder is 8m away from the wall. what is the height upto which the ladder reaches the wall? write the answer with steps.



Let AC be the ladder and AB be the wall.Now, AC = 17 mBC = 8 mIn ABC,AC2 = AB2 + BC2    Pythagoras Theorem172 = AB2 + 82289 =  AB2 + 64 AB2= 289 - 64 AB2= 225AB = 15 m

So, the ladder will reach upto the height of 15 m on the wall.

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